Hello Thomas,
The first Commitfest[1] for the next major release of PostgreSQL begins in a few days, and runs for the month of July.
There are 218 patches registered[2] right now,
ISTM that there are a couple of duplicates: 2084 & 2150, 2119 & 2180?
I volunteered to be the CF manager for this one, and Jonathan Katz kindly offered to help me[3].
Thanks for volunteering, and good luck with this task! -- Fabien.